<!doctype html>
<html>
<!--<body style="border:1px black solid;display: -moz-box;box-orient: horizontal;">-->
<body style="border:1px black solid;">

<div style="display:-moz-box;box-orient: horizontal;">
     <div style="background:blue;" id="box1">1</div>
     <div style="background:red;" id="box2">2</div>
     <div style="background:green;" id="box3">3</div>
</div>

</body>
</html>
